How to Use Led Module RED: Examples, Pinouts, and Specs

The Keyestudio LED Module RED (Part ID: KS0232) is a compact and versatile light-emitting diode (LED) module that emits bright red light. It is designed for ease of use in a variety of electronic projects, making it ideal for beginners and professionals alike. The module is commonly used as an indicator, in displays, or for decorative lighting purposes. Its simple design allows for quick integration into circuits, and it is compatible with microcontrollers such as Arduino.

• Manufacturer: Keyestudio
• Part ID: KS0232
• LED Color: Red
• Operating Voltage: 3.3V to 5V
• Current Consumption: ~20mA
• Dimensions: 18mm x 15mm x 8mm
• Mounting Type: PCB module with mounting holes
• Connector Type: 3-pin header (Signal, VCC, GND)

The LED Module RED has a 3-pin interface. Below is the pin configuration:

1. Power Supply: Connect the VCC pin to a 3.3V or 5V power source and the GND pin to the ground of your circuit.
2. Signal Control: Use the Signal pin to control the LED. When the Signal pin is set HIGH (logic 1), the LED will turn on. When set LOW (logic 0), the LED will turn off.
3. Resistor Consideration: The module includes an onboard current-limiting resistor, so no external resistor is required for typical use.

The LED Module RED can be easily connected to an Arduino UNO. Follow these steps:

1. Connect the Signal pin of the module to a digital I/O pin on the Arduino (e.g., pin 9).
2. Connect the VCC pin to the 5V pin on the Arduino.
3. Connect the GND pin to the GND pin on the Arduino.

Here is an example Arduino sketch to control the LED:

// Define the pin connected to the LED module
const int ledPin = 9;

void setup() {
  // Set the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Turn the LED on
  digitalWrite(ledPin, HIGH);
  delay(1000); // Wait for 1 second
  
  // Turn the LED off
  digitalWrite(ledPin, LOW);
  delay(1000); // Wait for 1 second
}

• Ensure the operating voltage does not exceed 5V to avoid damaging the module.
• Avoid connecting the Signal pin directly to a high-current source without proper control.
• If using the module in a high-frequency switching application, consider adding a capacitor to stabilize the power supply.

1. LED Does Not Light Up:

   • Verify that the VCC and GND pins are correctly connected.
   • Check if the Signal pin is set HIGH in your circuit or code.
   • Ensure the power supply voltage is within the 3.3V to 5V range.

2. LED Flickers or is Dim:

   • Check for loose connections in the circuit.
   • Ensure the power supply can provide sufficient current (~20mA).
   • If using long wires, consider adding a decoupling capacitor near the module.

3. Module Overheats:

   • Verify that the operating voltage does not exceed 5V.
   • Ensure the module is not exposed to excessive current.

Q: Can I use this module with a 3.3V microcontroller?
A: Yes, the module is compatible with both 3.3V and 5V systems.

Q: Do I need an external resistor for the LED?
A: No, the module includes an onboard current-limiting resistor.

Q: Can I control the brightness of the LED?
A: Yes, you can use PWM (Pulse Width Modulation) on the Signal pin to adjust the brightness.

Q: Is the module suitable for outdoor use?
A: The module is not weatherproof and should be used in indoor or protected environments.

By following this documentation, you can effectively integrate the Keyestudio LED Module RED (KS0232) into your projects for reliable and efficient performance.